78978760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2221}}^1$

素因数の和:2366

約数の個数: 64

約数和(自身を含む): 204779520

約数和(自身を除く): 125800760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 127, 140, 254, 280, 508, 635, 889, 1016, 1270, 1778, 2221, 2540, 3556, 4442, 4445, 5080, 7112, 8884, 8890, 11105, 15547, 17768, 17780, 22210, 31094, 35560, 44420, 62188, 77735, 88840, 124376, 155470, 282067, 310940, 564134, 621880, 1128268, 1410335, 1974469, 2256536, 2820670, 3948938, 5641340, 7897876, 9872345, 11282680, 15795752, 19744690, 39489380, 78978760]

約数ペア:

[(1, 78978760), (2, 39489380), (4, 19744690), (5, 15795752), (7, 11282680), (8, 9872345), (10, 7897876), (14, 5641340), (20, 3948938), (28, 2820670), (35, 2256536), (40, 1974469), (56, 1410335), (70, 1128268), (127, 621880), (140, 564134), (254, 310940), (280, 282067), (508, 155470), (635, 124376), (889, 88840), (1016, 77735), (1270, 62188), (1778, 44420), (2221, 35560), (2540, 31094), (3556, 22210), (4442, 17780), (4445, 17768), (5080, 15547), (7112, 11105), (8884, 8890)]